Review Article

Analytical Applications of Reactions of Iron(III) and Hexacyanoferrate(III) with 2,10-Disubstituted Phenothiazines

Figure 3

Schematic diagram of the FIA manifold used for the assay of promazine; R: iron(III) in hydrochloric acid solution; CS: water; P: peristaltic pump; S: samples injector; C: reactor; D: spectrophotometer adjusted to the corresponding wavelength of the oxidized form of phenothiazines; X: recorder; W: waste.
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